1.It is dangerous.( A.Don't be careful.B.Not be very carefulC.Look outD.Don't careful2.You must be( )when you cross the street.A.care B.careful C.carefully D.carefuly3.Don't be late again.You ( )be here on time.A.can B.may C.needn't D.must4.Don't( )t

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1.It is dangerous.(
A.Don't be careful.
B.Not be very careful
C.Look out
D.Don't careful
2.You must be( )when you cross the street.
A.care B.careful C.carefully D.carefuly
3.Don't be late again.You ( )be here on time.
A.can B.may C.needn't D.must
4.Don't( )the bread( )the animals.
A.throw,with B.throw,to C.give,at D.give,with

1c 小心
2b be 后+adj
3d must be 必须.on time是按时的意思
in time是及时地意思
4b throw to 向.扔
give 的固定搭配是 give sb sth
give sth to sb

1.c
2.b
3.d
4.b

1.c
2.b
3.d
4.b